159 lines
3.6 KiB
C++
159 lines
3.6 KiB
C++
// Copyright 2002 David Hilvert <dhilvert@auricle.dyndns.org>,
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// <dhilvert@ugcs.caltech.edu>
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/* This file is part of the Anti-Lamenessing Engine.
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The Anti-Lamenessing Engine is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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The Anti-Lamenessing Engine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the Anti-Lamenessing Engine; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __pixel_accum_h__
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#define __pixel_accum_h__
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#include "pixel.h"
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/*
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* Structure to accumulate values over many pixels.
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*/
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class pixel_accum {
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private:
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ale_accum x[3];
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public:
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pixel_accum() {
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x[0] = 0;
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x[1] = 0;
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x[2] = 0;
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}
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pixel_accum(ale_accum x0, ale_accum x1, ale_accum x2) {
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x[0] = x0;
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x[1] = x1;
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x[2] = x2;
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}
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pixel_accum(pixel p) {
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x[0] = p[0];
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x[1] = p[1];
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x[2] = p[2];
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}
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operator pixel() {
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pixel result;
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result[0] = x[0];
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result[1] = x[1];
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result[2] = x[2];
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return result;
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}
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// Due to automatic typecasts and automatic int <==> ale_accum *
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// conversions, this can cause some really weird bugs.
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//
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// pixel_accum(ale_accum *_x) {
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// x[0] = _x[0];
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// x[1] = _x[1];
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// x[2] = _x[2];
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// }
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const ale_accum &operator[](int i) const {
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assert (i >= 0);
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assert (i < 3);
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return x[i];
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}
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ale_accum &operator[](int i) {
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assert (i >= 0);
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assert (i < 3);
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return x[i];
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}
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pixel_accum operator+(pixel_accum p) const {
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return pixel_accum(p[0] + x[0], p[1] + x[1], p[2] + x[2]);
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}
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pixel_accum operator-(pixel_accum p) const {
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return pixel_accum(x[0] - p[0], x[1] - p[1], x[2] - p[2]);
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}
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pixel_accum operator/(pixel_accum p) const {
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return pixel_accum(x[0] / p[0], x[1] / p[1], x[2] / p[2]);
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}
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pixel_accum operator/(ale_accum d) const {
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return pixel_accum(x[0] / d, x[1] / d, x[2] / d);
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}
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pixel_accum operator*(pixel_accum p) const {
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return pixel_accum(x[0] * p[0], x[1] * p[1], x[2] * p[2]);
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}
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pixel_accum operator*(ale_accum d) const {
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return pixel_accum(x[0] * d, x[1] * d, x[2] * d);
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}
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pixel_accum operator+=(pixel_accum p) {
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return pixel_accum(x[0] += p[0], x[1] += p[1], x[2] += p[2]);
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}
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pixel_accum operator*=(pixel_accum p) {
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return pixel_accum(x[0] *= p[0], x[1] *= p[1], x[2] *= p[2]);
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}
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pixel_accum operator*=(ale_accum d) {
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return pixel_accum(x[0] *= d, x[1] *= d, x[2] *= d);
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}
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pixel_accum operator/=(pixel_accum p) {
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return pixel_accum(x[0] /= p[0], x[1] /= p[1], x[2] /= p[2]);
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}
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pixel_accum operator/=(ale_accum d) {
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return pixel_accum(x[0] /= d, x[1] /= d, x[2] /= d);
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}
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};
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inline pixel_accum operator*(float d, const pixel_accum &p) {
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return p * d;
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}
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inline pixel_accum operator*(double d, const pixel_accum &p) {
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return p * d;
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}
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inline std::ostream &operator<<(std::ostream &o, const pixel_accum &p) {
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o << "[" << (double) p[0] << " " << (double) p[1] << " " << (double) p[2] << "]";
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return o;
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}
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inline pixel_accum ppow(pixel_accum p, float d) {
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return pixel_accum(
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pow((ale_accum) p[0], d),
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pow((ale_accum) p[1], d),
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pow((ale_accum) p[2], d));
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}
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inline pixel_accum ppow(pixel_accum p, double d) {
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return pixel_accum(
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pow((ale_accum) p[0], d),
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pow((ale_accum) p[1], d),
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pow((ale_accum) p[2], d));
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}
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#endif
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